Removes even stubborn deposits such as tree resin and insects, rust bloom, brake dust, spray mist, tar, limescale stains, etc gently from smooth surfaces such as paintwork and glass, without affecting or damaging them.  

Optimal for intensive cleaning before the polishing process or before fitting new windscreen wipers.

NOTE: Blue Clay Bar is "Cleaning clay mild"

and

Red Clay Bar is a "Cleaning clay abrasive"